Since this is a sequel, do you guys think there will be some kind of link with the characters in BW? I was first thinking of being the child of the past characters but it's only been two years. Maybe siblings? Or possibly no link at all?

Was going to say this. They're pegged around the 15 - 17 year age range. Making them in their mid-to-late teens at the start of this game. So offspring would be a no-go, unless Nintendo want to endorse such a thing as infantile pregnancies.

I think it would be quite good to have some relation to the previous protagonists, GameFreak and Nitendo haven't done it so far, but they also have never made a direct sequel (Unless you count Silver/Gold as such) so you never know.

Hilbert/Hilda look quite old, somewhere pitched in the 13-15 range. The two new characters look even younger. But they are probably from a place where the events of B/W never happened, or they are totally unrelated. However, they both look similar to the way the R/S/E protags (R/S/E remakes??) were drawn. The boy, despite the possible theory of no relation at all, does look similar to Hilbert. The girl, however, is definitely an eyecatcher that you can't take your eyes off. She's probably got some relation to Lyra, seeing her hairstyle.

-------------------I'm considering returning here sometime in the near future. If I do, DO NOT make any remarks about my past life and/or that I'm gonna start making stupid "castlewars threads" because that's over with. Let it go, for once.

When I first saw the character designs of the new protags I immediately thought they looked similar to the original BW protags. However, I'm not yet sure if that means an actual relation or if the design of these were just influenced by the previous pair.

I think the new characters were told about Hilbert/Hilda as children and always wanted to be just like them.Then something happens that gives them the opportunity to go and fulfil their dreams.In my theory they are told these stories as 11-12 year olds which would make them 13-14 year olds now.This is why they look so young